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Aluminum Flanged Weld on Tank Fitting

Aluminum Flanged Weld on Tank Fitting

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Aluminum Flanged Weld on Tank Fitting

USA-made NPT aluminum weld flanges stamped from 6061 flat sheet. Sizes 1/8"–2" NPT. Common uses: fuel, hydraulic, and water tanks.

  • Made in USA
  • Quality-checked with L1 thread gauge
  • Not replaced after welding

NPT sizes refer to the pipe that threads into the fitting. Threads have a 1.8° taper — male fittings typically tighten 1 turn or less past hand-tight. Use appropriate thread sealant.

NPT ID OD TPI Thickness Installed Height Hole Cut
1/8" 0.35" 1.75" 27 .27" .22" .750"
1/4" 0.46" 1.75" 18 0.27" 0.22" .750"
3/8" 0.58" 1.75" 18 .27" .22" 1"
1/2" .73" 1.75" 14 .27" .22" 1"
3/4" .92" 2.37" 14 0.31" 0.25" 1.25"
1" 1.17" 2.37" 11.5 0.31" 0.25" 1.5"
1.25" 1.49" 2.86" 11.5 0.4" 0.25" 2"
1.5" 1.75" 3.39" 11.5 0.437" 0.31" 2.25"
2" 2.21" 3.84" 11.5 0.5" .36" 2.75"

Documents: NPT weld fittings guide (PDF) | NPT weld fittings guide | Weld fittings product guide

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Quick Order List Below

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Variant Variant total Quantity Price Variant total
1/8" NPT #2100121001
1/8" NPT #2100121001
$2.55/ea		 $0.00
$2.55/ea $0.00
1/4" NPT #2100221002
1/4" NPT #2100221002
$2.55/ea		 $0.00
$2.55/ea $0.00
3/8"NPT #2100321003
3/8"NPT #2100321003
$2.55/ea		 $0.00
$2.55/ea $0.00
1/2" NPT #2100421004
1/2" NPT #2100421004
$2.55/ea		 $0.00
$2.55/ea $0.00
3/4"NPT #2100521005
3/4"NPT #2100521005
$3.42/ea		 $0.00
$3.42/ea $0.00
1" NPT #2100621006
1" NPT #2100621006
$3.51/ea		 $0.00
$3.51/ea $0.00
1.25" NPT #2100721007
1.25" NPT #2100721007
$6.00/ea		 $0.00
$6.00/ea $0.00
1.5" NPT #2100821008
1.5" NPT #2100821008
$7.89/ea		 $0.00
$7.89/ea $0.00
2"NPT #2100921009
2"NPT #2100921009
$11.04/ea		 $0.00
$11.04/ea $0.00
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